Average Rainfall for Louisiana in September
The tables below give monthly averages for rainfall during September at cities, communities and other locations around Louisiana.
Each place has a total for the amount of precipitation it usually receives this month along with information on the number of days with wet weather. This includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.
The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.
You can jump to a separate table for each region of the state: Gulf Coast, Florida Parishes, Central and North Louisiana.
Gulf Coast
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 11 | Boothville | 4.1 | 104 |
| 9 | Crowley | 5.0 | 126 |
| 11 | Houma | 5.8 | 147 |
| 9 | Lafayette | 5.0 | 128 |
| 9 | Lake Charles | 5.2 | 132 |
| 11 | Morgan City | 5.4 | 137 |
| 11 | New Iberia | 5.1 | 128 |
| 10 | New Orleans | 5.1 | 130 |
| 11 | Rockefeller Wildlife Refuge | 6.0 | 153 |
Florida Parishes
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 9 | Baton Rouge | 4.4 | 112 |
| 9 | Bogalusa | 4.7 | 120 |
| 9 | Hammond | 4.4 | 111 |
| 7 | New Roads | 4.1 | 103 |
| 10 | Slidell | 5.0 | 126 |
Central Louisiana
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 6 | Alexandria | 4.0 | 101 |
| 9 | Leesville | 4.3 | 109 |
| 7 | Natchitoches | 3.9 | 99 |
| 7 | Opelousas | 5.0 | 128 |
| 6 | Winnfield | 3.6 | 92 |
North Louisiana
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 6 | Lake Providence | 3.3 | 84 |
| 7 | Monroe | 3.6 | 91 |
| 7 | Ruston | 3.8 | 97 |
| 7 | Shreveport | 3.5 | 88 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.